<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div th:fragment="lief">
        <strong>功能列表</strong>
        <ul id="caidan">
            <li>用户管理</li>
            <li><a id="lunwen">论文管理</a>></li>
            <li>公共代码</li>
            <li><a id="tuichu">退出系统</a></li>
        </ul>
    </div>
</body>
</html>